fix: Highlight or mark installed versions when running asdf list all <name>

[roele]

Summary

Color highlight installed versions of the list-all command.

Note: It seems asdf does not use colors anywhere, hence we might decide to use another indicator (e.g. ▶ ). Simply appending (installed) is visually not distinctive enough IMO. If an icon like indicator is used we might have to think about consistent output formatting.

Uses the internal function list_installed_versions to get all installed versions and adds a color highlight during output iteration.

Since the command latest [--all] uses the command list-all as fallback to get versions, any output format change breaks this functionality. Hence i decided to create an (internal) function list_all_versions which can be used by both commands.

The change lead the test [latest_command - dummy_legacy_plugin] No stable version should return an error to fail which i could not figure out why. It's expecting no output even though the code actually outputs an error "No compatible versions available ($plugin_name $query)". For now i came to the conclusion that maybe previous behaviour might have been faulty.

Fixes: #1152

[roele]

Removed colored output, fixed tests, shellcheck and shfmt.